Based on KPDF 3.5.5, KPD2 adds support for user bookmarks and margin notes. Users can add bookmarks with name and comments either to a page or to a region of a page using the selection tool. A tool panel on the left side shows all of the bookmarks added to a document and allows easy navigation (left click) to a bookmark and the ability to edit and remove bookmarks (right click). Bookmarks are saved in a an .xml file that is saved to the directory where the .pdf file resides with the name lt;pdf namegt;.kpdf2.xml.